Brand Name: RainbuvvyCategory: Smart WatchesSystem: Android OSFunction: PassometerFunction: Message ReminderFunction: Call ReminderFunction: Answer CallFunction: Dial CallFunction: Remote ControlFunction: Push MessageFunction: 24 hour instructionFunction: Alarm ClockFunction: Heart Rate TrackerFunction: Interactive MusicFunction: LightingFunction: CountdownFunction: CalculatorsBattery Life: 2SIM Card Available: YesType: On WristVoice assistant built-in: NoLanguage: EnglishLanguage: RussianLanguage: SpanishLanguage: PolishLanguage: PortugueseLanguage: TurkishLanguage: ItalianLanguage: FrenchLanguage: GermanLanguage: NorwegianLanguage: KoreanLanguage: JapaneseLanguage: UkrainianLanguage: DutchLanguage: IndonesianLanguage: GreekHigh-concerned chemical: NoneDisplay Size: 2.86 InchNetwork Mode: 4GMetrics measured: Heart Rate MonitorMetrics measured: Sleep MonitorRAM: 3 GBScreen Shape: SQUAREBattery Capacity(mAh): >450mAhResolution: 640*480Bluetooth-compatible Version: 4.0GPS: YesScreen Material: IPSMultiple Dials: YesApplication Age Group: AdultMechanism: YesOrigin: Mainland ChinaCompatibility: All CompatibleROM: 32 GBRear Camera: NoneActivity Tracked: Steps TrackerActivity Tracked: Distance TrackerActivity Tracked: Calorie TrackerActivity Tracked: Activity TrackerWaterproof Grade: Life WaterproofCPU Model: MTK 6739Band Material: Silica GelBattery Detachable: NoBand Detachable: YesApp name: WiiWatch 2CPU Manufacturer: MediaTekCertification: CEStyle: SPORTMovement Type: ElectronicModel: DM100APP Download Available: YesCase Material: AlloyWatch Size: 75.2mm*52mm*16.6mm (L+W+H)Strap Size: 120mm + 80mmWatch Weight: 154gFeatures 1: Large Screen Video Call SmartwatchFeatures 2: 4G Wearable Device Watch Phone